Milwaukee 49-56-7545 Quik-lok 5pc Arbor Set

Product Description

The MILWAUKEE 49-56-7545 is a 5-piece QUIK-LOK arbor set designed for fast hole saw changes on the job site. Built around a 3/8 inch drive, this set is compatible with all industry-standard threaded hole saw sizes and brands, eliminating the need for multiple arbors. The included small-thread and large-thread adapters cover a wide range of hole saw sizes in one kit. The system retains hole enlargement capability through its threaded adapter design, making it a practical solution for HVAC, electrical, and plumbing rough-in work where frequent hole saw swaps are common.

This arbor set is suited for residential and light commercial installation work. The reusable large-thread pin adapter handles hole saws from 1-1/4 inches up to 6-7/8 inches. The small-thread adapter is intended for hole saws from 9/16 inches to 1-3/16 inches with 1/2 inch by 20 threads. The large-thread adapter covers hole saws from 1-1/4 inches up to 2 inches with 5/8 inch by 18 threads. Note that BIGHAWG and deep cup hole saws require the 49-56-9300 pilot bit and the 49-56-7575 adapter, which are not included in this set.

Key Features

• QUIK-LOK system allows fast hole saw changes without additional tools
• Universal fit with all industry-standard threaded hole saw sizes, types, and brands
• Reusable large-thread pin adapter covers hole saws from 1-1/4 inches to 6-7/8 inches
• Small-thread adapter for hole saws from 9/16 inches to 1-3/16 inches at 1/2 inch by 20 threads
• Large-thread adapter for hole saws from 1-1/4 inches to 2 inches at 5/8 inch by 18 threads
• Threaded adapter design retains hole enlargement capability

Compatibility

Compatible with all industry-standard threaded hole saw sizes and brands. BIGHAWG and deep cup hole saws require part numbers 49-56-9300 and 49-56-7575, sold separately.

Installation Notes

Installation is performed by electricians, plumbers, and HVAC technicians using standard drill or driver equipment. Always ensure the drill or driver is powered off and the chuck is secured before changing hole saw attachments. Follow the threaded adapter engagement procedure fully to prevent binding or spin-off during operation. Verify the correct adapter size is matched to the hole saw thread specification before use.